Home / 140,008.91-209,120.92-126,661.46

Finding the Fourth Proportional to 140,008.91, 209,120.92 and 126,661.46

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Solution

The fourth proportional to 140,008.91, 209,120.92 and 126,661.46 is: 189,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,008.91 : 209,120.92 = 126,661.46 : x
  2. Step 2: Convert to fraction form
    140,008.91/209,120.92 = 126,661.46/x
  3. Step 3: Cross multiply
    140,008.91x = 209,120.92 × 126,661.46
  4. Step 4: Simplify right side
    140,008.91x = 26,487,559,681.49
  5. Step 5: Solve for x
    x = 26,487,559,681.49/140,008.91
  6. Step 6: Final answer
    x = 189,184.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.